document.write( "Question 417401: Which is an equation of the circle with a radius of 9 units and center at
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Algebra.Com's Answer #292216 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Standard Form of an Equation of a Circle is 
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document.write( "where Pt(h,k) is the center and r is the radius
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document.write( "circle with a radius of 9 units and center at(–4, 2)
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document.write( " (x+4)^2 +(y-2)^2 = 81
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